1. Renewable Fuels Association (2015) Monthly U.S. Fuel ethanol production/demand. http://ethanolrfa.org/pages/monthly-fuel-ethanol-production-demand . Accessed 6 Apr 2015
2. Renewable Fuels Association (2014) Statistics. http://www.ethanolrfa.org/pages/statistics . Accessed 6 Apr 2015
3. Renewable Fuels Association (2014) Falling walls & rising tides. http://www.ethanolrfa.org/page/-/rfa-association-site/Resource%20Center/2014%20Ethanol%20Industry%20Outlook.pdf?nocdn=1 . Accessed 9 Jan 2015
4. U.S. Environmental Protection Agency (2015) RFS2 EMTS Informational Data. In: Fuels Fuel Addit. http://www.epa.gov/otaq/fuels/rfsdata/index.htm . Accessed 14 Jul 2015
5. Dupont (2015) DuPont Nevada site cellulosic ethanol facility. http://biofuels.dupont.com/cellulosic-ethanol/nevada-site-ce-facility/ . Accessed 19 Jan 2015